Telescopic sight provided with variable sighting-points.



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sazq. @Q 1,135,787 5R O. GRAUHEDING.

TI-ILESCOPIC SIGHT PROVIDED WITH VARIABLE SIGHTING POINTS.

APPLICATION min ocr. 19. |914.

.idc-MNH; u reuen-mm new UNITED STATES PATENT OFFICE.

OSKAR GRAUHEDING, OF DUSSELDORF, GERMANY, ASSIGNOR TO RHEINISCHE METALL- WAAREN- UND MASCHINENFABRIK, OF DUSSELDORE-DERENDORF, GERMANY, A

CORPORATION OF GERMANY.

TELESCOPIC SIGHT PROVIDED WITH VARIABLE SIGI-ITING-POINTS.

Application led October 19, 1914.

To all whom it may concern Be it known that I, OsKAR GRAUHEDING, engineer, a subject of the German Emperor, residing at 26 F ischerstrasse, Dusseldorf, Germany, have invented certain new and useful Improvements in Telescopic Sights Provided with Variable Sighting-Points; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invent-ion consists in further modifications of the sighting devices for a telescope described in Letters Patent No. 1,004,416, dated september 26, 1911.

The invention consists in providing means for separately adjusting the position of .the sighting marks, which enables the sighting points to be set in the field of view of the telescope according to range.

In the accompanying drawings, Figure l represents a cross section and Fig. 2 a side view of an example of a construction according to the invention. Fig. 3 shows a side view of another construction of the adjusting device. Figs. el and 5, are respectively, a cross section and elevation, with parts in section, of a slight modification.

The different sighting marks are placed in radially movable separate frames b mounted in a main frame o which is eccentric to the optic axis. The frames Z) carrying the marks can be raised or lowered relatively to the optic axis by adjusting screws o1 and c2 engaging o-pposite points of said frames. In this way, the optical angle of elevation can be exactly adjusted for every range by observation when the gun is fired. Every time the gun is fired, the exact position of the point of intersection can be again determined. The pin d, which is under spring pressure, holds the main frame a in every position in which it may be set. The frame can be easily turned by hand by a milled wheel or other means, and each sighting mark, as it may be required, can be brought into the field of view of the telescope. The sighting marks can in known manner be etched on glass, as shown in Figs. l to 3, or

Specification of Letters Patent.

Patented Apr. 13, 1915.

serial No. 867,417.

formed by wires, as shown in Figs. 4 and 5. The corresponding range number is shown in Figs. l to 3 under each sighting mark.

The sighting marks need not be arranged in the construction shown, but, as indicated in Fig. 3, different constructions may be used to suit the disposition of the eccentrically arranged disk on which the marks are placed. To suit this eccentric position, instead of the radial arrangement screws shown in Fig. 22, they may be set tangen` tially as shown in Fig. 3.

In Figs. 4 and 5 the sighting marks e are wires set in radially arranged screw plugs f, which are designed to be adjusted within the main frame a.

I claim as my invention:

l. A sight comprising a telescope, a series of sighting marks, separate supports for said marks, and a mainframe carrying said supports mounted in said telescope eccentrically to the optic axis thereof.

2. A sight comprising a telescope, a series cf sighting marks, a separate frame for each mark, and a main frame in which the markcarrying frames are mounted, said main frame being mounted in said telescope eccentrically to the optic axis thereof.

3. A sight comprising a telescope, a series of sighting marks, a separate frame for each mark, a main frame in which the mark-carrying frames are mounted, said frame being mounted in the telescope eccentrically to the optic axis thereof, and means for separately adjusting the mark-carrying frames.

ll. A sight comprising a telescope, a series of sighting marks, a separate frame for each mark, a main frame in which the mark-can rying frames are mounted, said main frame being mounted in the telescope eccentrically to the optic axis thereof, and adjusting screws mounted in said main frame and engaging the separate frames.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

OSKAR GRAUHEDING. [1.. s]

Witnesses:

HELEN NUrER, ALBERT NUFER.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

